NSN 4820-00-706-4591

Safety Relief Valve

FSC: 4820 NIIN: 007064591

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Product Characteristics

NSN:

4820007064591

Demilitarization:

INC:

05488

Shelf Life:

N/A

Pipe Size Accommodated:

0.250 inches 1st end

Thread Direction:

Right-hand 1st end

Flow Control Device:

Poppet

Disk Loading Method:

Spring

Maximum Operating Temp:

250.0 degrees fahrenheit single response

Connection Style:

Plain (pipe) 1st end

Valve Operation Method:

Automatic

Connection Type:

Threaded external pipe 1st end

Features Provided:

Pressure tight outlet side

Thready Qty Per Inch (tpi):

18 1st end

Maximum Operating Pressure:

200.0 pounds per square inch single response

Thread Size:

0.250 inches 1st end

Opening Pressure Setting:

5.0 pounds per square inch

Special Features:

Refrigerant 12 sixth media

Material:

Steel comp 303 seat

Material Specification:

Aisi 3031/sae 30303 assn standard single material response

Media For Which Designed:

Hydrogen 5th response

Style Designator:

Straight through w/baffle

Thread Series Designator:

Npt 1st end

Part Numbers

C1058A2D5
LOCKHEED MARTIN CORPORATION
D539A2M5
CIRCOR AEROSPACE, INC.
D559A-2M-5
CIRCOR AEROSPACE, INC.

Shipping & Handling

HMIRS:

No MSDS. No hazardous material.

ESD:

No known electrostatic discharge.

Schedule B:

8481400000 - Safety or relief valves.

Professional Distribution

ITAR Registered
DDTC Registered
HAZMAT Certified
AS9120 Quality Standards
100% Quality Inspections

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Cage Codes

LOCKHEED MARTIN CORPORATION - 81755

CIRCOR AEROSPACE, INC. - 91816